Antifriction hollow-tube sucker-rod for deep wells.



i. BLACK.

APPLICATION FLED FEB. 243. 1918.

ANTI? (IC'HN HLLOW TUBE SUCHE?? ROD FOR DEEf WELLS' met if@ orarioefippicatiou ebruary 2E, uw.' Serial 2%. 219,712.

To al wftom may concern:

Be it known that l, WILLIAM L. Basen, a citizen of the United States,and resident of Fort Mclavett, in the county of Menard and State otTexas, have invented certain new and useful improvements in ntirio tionHollow-Tube Sucker-Rods for Deep Wells, of which the Jollowimg is aspecification.

The `presenut invention relates to sucker rods for pumping oil, waterand other liquids from deep wells, and aims to provide novel andimproved yet simple and inexpensive means for coupling the tubularsections of the sucker rod together and guiding said rod with little orno tric-tion in the well casing or tuba The invention has for its objectthe provision of a simple and effective device for coupling the tubularsections of the sucker rod together, and provided with simple andefficient anti-friction means for guiding the sucker rod forreciprocation in the Well.

This invention is an improvement over the devicesy shown in my formerPatents Nos. leraar, 484,947, nales, 712,487, 712,488, 712,901, and735,200.

With the foregoing and other ohiects 1n view, which will be apparent asthe invention is better understood, the saine resides in theconstruction and arrangement of parts hereinafter described and claimed,1t being understood that changes Within the Scope of what is claimed canbe made Without departing from the spirit of the inverr tiert Theinvention is illustrated. in the accompanying drawing, Whereiua-4 Figureis longitudinal coupling and roller guide.

Fig. 2 ,is a side elevation thereof.

the drawing` the numeral l designates the casing or tube oi a deep Well,and the numerals Z and 3 designate two tubular sections of the suckerrod which reciprocates in the casing l for pumping the oil, Water orother liquid as usual.

The coupling is designated. generally by the numeral fl, and embodies avertical tubular or hollow body 5 of suitable material and of largerdiameter than the sucker rod and slightly less diameter than the casingl. The upper and lower ends of the bodyT 5 are contracted, as at 6, toprovide the reduced open ends or bosses 'Y which are internally sectionor the screw threaded for the threaded reception rarement oet, tra,reist of the adjacent ends of the sucker rods sections 2 and 3, thuscoupling said sections together. l,

Disposed within the bodv 5 of the coupling are a plurality ofverticallyv spacedv guide rollers 8, there being two as illustrated valthough morey can be used. rlhese rollers are arranged in differentvertical planes at' an angle with one another, and said rollers aremounted on the axles or pins 9 havingV thereof. -The Walls of the bodyT5 are provided With longitudinal slots ll through which the peripheriesof the rollers 8 project slightly from the opposite sides of thecoupling. The rollers 8 are of' slightly larger diameter than vthe body5 to project therefrom, but of slightly less diameter than the internaldiameter of the Well casing 1,

so that the rollers Will be out of contact with the casing when thesucker rodl is concentric therein.

l/Vith the present construction, or tubular sucker rod sections havetheir ends opening into the coupler which is tubular or hollow, and thispermits of the liquid flowing through the sucker rod and Acoupler asWell as on the exterior thereof, thus increasing the capacity of thepump to the maximum, because'oi1 the maximum cross sectional area of thecolumn of liquid Within and Without the sucker rod..

'lhe sucker rod is at all times kept at the center ol the casing by therollers, for should the sucker rod tend to shift laterally toward. anyside, one or both of the rollers will con. tact with the easing. Saidrollers will reduce friction between the; sucker rod and casing. Theaxles of the rollers can be of comparatively large diameter, so as toinsure great strength and wearin device there-fore provides tor economyby increasing .the capacity of the pump and decreasing wear and tear.Furthermore, the hollow formation of the; coupler 'and 'slots preventsthe accumulation of sand, grit and the like adjacent to the rollers,thus keeping the device clear.

lt is preferable to have lock nuts 19011 the rod sections Q'and 3 tobind against the ends of the coupler and avoid loosening o the partaability. rlhis the hollow. 'l

Having thus described the invention, what is claimed 'as new is:

1. A sucker rod guide andl coupling e1nbodying a slotted vertical bodyhaving means to connect'the spaced ends of tubular sucker rod'sections,said body being hollow for permitting the flow of liquid between saidsucker rod sections and rollers mounted in the body in differentvertical planes at an angle with one another and projecting outwardlythrough the slots of the body.

2. A sucker rodliguide and coupling yenibodying a hollow"y yer-ticalbodyv having side slots and open ends for the attachment ot' spacedtubular sucker rod sections to connectth In and permit the iow of liquidtherein, a-Iid` rollers mounted within the body ie different verticallanes at an angle with one another andp projecting outwardly throughsaid slots from the sides of the body.

3. A sucker rod guide and coupling e1n bodying a hollow body havingslotted sides yand open ends for the attachment of the ends of spacedtubular sucker rod sections to connect them' and permit the low` ofliquid therein, and anti-friction guiding means mounted within the bodyand-project ing from the. sides thereof through the slots.

4. A sucker rod guide and coupling .eme bodying a hollow body havingslots in its sides and reduced open ends for the atta jh ment of spacedtubular sucker rodsections to connect them and permit the flow ot.-

liquid therein, and rollers mounted within the body and projecting'fromthe sides thereof through said slots.

5. A sucker rod guide and coupling ernbodying a hollow vertical bodyhaving open ends forthe attachment of spaced tubular sucker rod sectionsto connect them and pervmittheow of liquid therein, vertically i-,eemsespaced rollers Within the body in diierent vertical planes at an anglewith one another, the sides oi the body having slots from which therollers project, and axles for the rollers supported by the walls of thebody.

6. The. combination with spaced tubular sucker rod sections. of a hollowcoupling connecting them for the flow of liquid therein and having sideslots, and anti.- t'riction means housed within the coupling andextending out through the slots to guide it in the well.

T. The combination with spaced tubular sucker rod sections, of a hollowcou ling connecting them for the flow of liquid t erein and having' sideslots, andI vertically' spaced antbfriction guiding means mounted withinthe coupling and projecting from the sides thereof 'through the slots.

8. The combination with spaced tubular sucker rod sections, of acoupling embodying a hollow body having slotted sides and open,endsattached to said sections to oonnect-them and permit the flow of liquidtherein, and rollers mounted within thebody and projecting from thesides thereof through the slots.

9. 'lhc combination with spaced tubular sucker rod sections, of acoupling therefor embodying a hollow body of larger diameter n than saidsections and having reduced open ends attached to the adjacent ends ofsaid sections to connect. them for the flow of liquid therein, rollerswithin the body, the

walls of the body having slots through which said'rollers project, andaxles for the rollers supported by said walls.

' In testimony whereof set my hand this 18th day of February, 1918.

'WILLIAM L. steen.

